Thermo-reversible MWCNTs/Epoxy Polymer for Use in Self-healing and Recyclable Epoxy Adhesive

来源 :Chinese Journal of Polymer Science | 被引量 : 0次 | 上传用户:aa283488665
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A self-healing and recyclable carbon tube/epoxy adhesive was prepared by epoxy monomer with Diels-Alder(DA) bonds, diethylenetriamine and polyethyleneimine modified multi-wall carbon nanotubes(MWCNTs). The self-healing and recyclable ability was attained by thermally reversible Diels-Alder reaction between furan and maleimide in the epoxy monomer. By controlling the molar ratio of furfuryl glycidyl ether and 4,4′-methylenebis(N-phenylmaleimide), the glass transition temperature and mechanical properties of MWCNTs/epoxy adhesives were varied. The self-healing properties of MWCNTs/epoxy polymers were evaluated by lap shear experiment and the results showed that the MWCNTs/epoxy adhesives exhibited enhanced mechanical properties and excellent self-healing ability under heat stimulus. The healing efficiency was related to the molecule mobility and the conversion of DA reaction between furan and maleimide. The MWCNTs/epoxy adhesives also displayed excellent recyclable ability by transforming into soluble polymer under heating. These materials offer a wide range of possibilities to produce materials with healing and recyclable ability and have the potential to bring great benefits to our daily lives by enhancing the safety, performance, and lifetime of products. A self-healing and recyclable carbon tube / epoxy adhesive was prepared by epoxy monomer with Diels-Alder (DA) bonds, diethylenetriamine and polyethyleneimine modified multi-wall carbon nanotubes (MWCNTs). The self-healing and recyclable ability was attained by thermally reversible Diels-Alder reaction between furan and maleimide in the epoxy monomer. By controlling the molar ratio of furfuryl glycidyl ether and 4,4’-methylenebis (N-phenylmaleimide), the glass transition temperature and mechanical properties of MWCNTs / epoxy adhesives were varied. The self-healing properties of MWCNTs / epoxy polymers were evaluated by lap shear experiment and the results showed that the MWCNTs / epoxy adhesives showed enhanced mechanical properties and excellent self-healing ability under heat stimulus. The healing efficiency was related to the molecule mobility and the conversion of DA reaction between furan and maleimide. The MWCNTs / epoxy adhesives also displayed excellent recyclable ability by transform ing into soluble polymer under heating. These materials offer a wide range of possibilities to produce materials with healing and recyclable ability and have the potential to bring great benefits to our daily lives by enhancing the safety, performance, and lifetime of products.
其他文献
7月1日,在这个中国共产党的生日里,每一个党组织和共产党员自然知道要做些什么,会做些什么。比如:老党员重温入党誓词,支部集体召开纪念会议,组织全体党员读党史,学先贤,总结
【命题特点分析】时尚广告主要介绍新产品的销售情况、旅游景点的开放情况、电影的放映情况和电视的播放情况等,为人们的生活提供服务,以提高人们的物质和文化生活水平。 【
丙烯腈是很多化工物质的合成单体,具有重要的经济价值,我们常见的腈纶,丁腈橡胶,ABS树脂等物质都是由丙烯腈作为重要原料生产加工而来。随着社会的进步,人们对各种化工产品的
都昌县把解决当前群众困难问题放在突出位置,创新为民服务机制,在全县开展以“下基层、访民情、办实事、促提升”为主题的千名干部联系服务万户群众活动,大力推行“背包”服
在天然橡胶胶乳的硫磺硫化体系中,分别加入0份、2份、5份、10份、20份和30份CaSiO_3,制备半硬质发泡材料。CaSiO_3能够提高发泡材料的力学性能、热学性能和物理性能。CaSiO_3
离心泵是现代油气化工、食品医药、新材料中广泛应用的液体输送设备,其检修过程中的质量和安全关乎企业的生产效率与安全管理。本文就以一台单级单吸离心泵为例在检修要领和
众所周知,兴趣是最好的老师,如果学生对学英语不感兴趣了,就无法坚持正常的学习,其效果就不言而喻了。因此,教学过程中我们的首要的任务是要激发他们学习英语的兴趣,笔者在教育教学实践过程中,始终坚持把培养学生对英语的学科兴趣放在首位。笔者认为,兴趣不仅是学习动机的起因,也是引起一切注意的先决条件,直接影响着我们的课堂效果。因此在教学过程中我尽量从兴趣入手,促使学习动机的产生,培养学生的学习主动性,利用科
动态负载模拟是室内台架试验关键技术,也是考核自动变速器综合性能重要手段。研究针对EM-CVT负载模拟方法,采用MATLAB/Simulink建立自动变速器动态负载模拟系统数学模型,结合
如何发展高等职业教育是当前成人教育、职业教育在深化改革中普遍遇到的重大课题.本文对高等职业教育的培养目标以及特点,从理论和实践的结合上进行了探索,对职业教育的培养目标
汽车板弹簧主要承受汽车自重和载重,起着重要的减震作用。某板弹簧在使用不久即在卷耳部分断裂。为了查明原因,通过力学性能检验、金相组织观察、成分检测等手段,对断口进行